Android Open Source - Joetz-Android-V2 Start Activity

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License

The source code is released under:

GNU General Public License

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Java Source Code

package com.example.jens.myapplication.activities;
//  w w w. ja  va2 s .  c o  m
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Window;
import android.widget.TextView;

import com.example.jens.myapplication.R;
import com.example.jens.myapplication.apimanager.CancellableTask;
import com.example.jens.myapplication.apimanager.SimpleRequestTask;
import com.example.jens.myapplication.apimanager.manager.CampManager;
import com.example.jens.myapplication.apimanager.manager.LoginManager;
import com.example.jens.myapplication.main.MainActivity;
import com.example.jens.myapplication.sam.JoetzApplication;

public class StartActivity extends Activity {
    private CancellableTask loginTask;

    private TextView mTxtInfo;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
      getWindow().requestFeature(Window.FEATURE_ACTION_BAR);
      getActionBar().hide();
        setContentView(R.layout.activity_start);

        mTxtInfo = (TextView) findViewById(R.id.txtInfo);

        checkLogin();
    }

    /**
     * Check if there is a cached login key, if yes, perform login and go to main screen. If there
     * is no cached key, go straight to main screen
     */
    private void checkLogin(){
        LoginManager loginManager = JoetzApplication.getContext().getLoginManager();
        if(!loginManager.isLoggedIn() && loginManager.existsCachedKey()){
            mTxtInfo.setText(R.string.info_logging_in);
            loginTask = loginManager.tryLoginWithCachedKey(new SimpleRequestTask() {
                @Override
                public void doTask(int statusCode) {
                    loginTask = null;
                    mTxtInfo.setText("");
                    loadCamps();
                    goToMainScreen();
                }
            });
        }else{
            loadCamps();
            goToMainScreen();
        }
    }

    /**
     * Start loading the camps in the background
     */
    private void loadCamps(){
        CampManager cm = JoetzApplication.getContext().getCampManager();
        if(!cm.isCampsLoaded()){
            cm.retrieveCamps(null);
        }
    }

    /**
     * Go to the main screen (seeing that this is just a startup screen)
     */
    private void goToMainScreen(){
        if(loginTask != null){
            loginTask.cancelTask();
        }

        Intent i = new Intent(this, MainActivity.class);
        startActivity(i);
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        if(loginTask != null){
            loginTask.cancelTask();
        }
    }
}

Java Source Code List